Be prepared to handle situations, where law requires you to file your return even though no tax is payable in your case! Section 139 of the Income-tax Act provides that an individual or a Hindu Undivided Family (HUF) is required to file his Income-tax Return, if his Gross Total Income (GTI) prior to various deductions under Section 80 family (such as 80C, 80D, 80G etc.) exceeds the basic income-tax...